Technical Data / Specifications
With the ASUS GeForce GTX 650 Ti Boost DirectCU II OC you get a factory overclocked
card with a custom PCB cooled by a DirectCU II cooler. The ASIC quality
measured on our sample was 71.7 % which is about average.
About ASIC quality:
Looking at the clock speeds we see that the GPU runs at 1'020 MHz with a
typical boost of 1'085 MHz, 52 MHz higher than the reference model. There are only three cards that feature higher
clocks you can find in Europe. If you'd like to find them, check out our
market overview:
the SuperClocked from EVGA, the iChill HerculeZ 2000 from Inno3D and the OC from
Gigabyte. Like most other manufacturers no factory overclocking has been made on
the GDDR5 memory, therefore the clocks remain at 1'500 MHz (6'000 MHz effective) following
nVidia's recommendations.
nVidia GeForce |
GTX 660 |
ASUS GTX 650 Ti Boost DC2OC |
GTX 650 Ti Boost |
GTX 650 Ti |
Chip |
GK106 |
GK106 |
GK106 |
GK106 |
Process |
28 nm |
28 nm |
28 nm |
28 nm |
Transistors |
2.54 Billion |
2.54 billion |
2.54 billion |
2.54 Billion |
GPU
clock |
980 MHz |
1'020 MHz |
980 MHz |
925 MHz |
GPU Boost
clock |
1'033 MHz |
1'085 MHz |
1'033 MHz |
N/A |
Memory |
2'048 MB GDDR5 |
2'048 MB GDDR5 |
2'048 MB GDDR5 |
2'048/1'024 MB GDDR5 |
Memory
clock |
1'500 MHz (6'000 MHz) |
1'500 MHz (6'000 MHz) |
1'500 MHz (6'000 MHz) |
1'350 MHz (5'400 MHz) |
Memory
interface |
192 Bit |
192 Bit |
192 Bit |
128 Bit |
Memory
bandwidth |
144'200 MB/s |
144'200 MB/s |
144'200 MB/s |
86'400 MB/s |
TMUs |
80 |
64 |
64 |
64 |
Shader Cores |
960 (5 SMX) |
768 (4 SMX) |
768 (4 SMX) |
768 (4 SMX) |
ROPs |
24 ROP |
16 ROP |
16 ROP |
16 ROP |
Maximum board power |
140 Watt |
XXX Watt |
140 Watt |
110 Watt |
PCB Type |
Reference Design |
Custom Design |
Reference Design |
Reference Design |
Size (PCB - Total) |
17.2 - 24.0 cm |
19.0 - 21.2 cm |
|
PCIe16x |
Cooler |
Reference Design |
DirectCU II |
Reference Design |
Reference Design |
MSRP |
$229 |
$XXX |
$169 |
$149 |
As mentioned previously, this card from ASUS makes use of the
custom PCB. ASUS engineers reworked the circuitry and the power design but didn't
go too far. In this case you don't find a digital power design nor more phases.
The only major changes apart from the PCB design itself are the use of super
alloy components and different but still cost effective voltage controller. Therefore you get
an analogue power design with five phases, where the GPU gets four phases and the memory gets one phase.
The voltage regulation chip used for the GPU is a RT8867A from Richtek
Technology. On the memory power design side you find an APW7165A from ANPEC
Electronics.
ASUS ships the GeForce GTX 650 Ti Boost with a smaller and cheaper version of the dual slot DirectCU
II cooler. This one comes with two heatpipes, that feature 6 millimeter
diameter. Both heatpipes establish direct contact via the direct touch
technology. Furthermore there are two 75 millimeter fans and no aluminium fins. The latter explain
itself when you look at the heatsink, which has been made from aluminium
entirely. Very cheap but in our test it proved to be very good - so why not.
Although this cooler is a smaller version, it is longer than the card's PCB by
2.4cm lenghtwise, which ends up with a total card lenght of 21.50 centimeter. Also because of the two heatpipes the cooler is 0.8
centimeter higher.
The memory chips used are made by Hynix and carry the model number
H5GQ2H24AFR-R0C. They are specified to run at 1'500 MHz (6'000 MHz effective).
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